/* roulang page: index */
:root{
  --bg:#14111A;
  --bg-alt:#1B1723;
  --surface:#221C2B;
  --surface-2:#2B2437;
  --line:#3A3147;
  --pink:#FF6FA5;
  --pink-deep:#D94A82;
  --mint:#57E2B0;
  --lemon:#FFD35C;
  --violet:#9B7BFF;
  --text:#F2EDF5;
  --muted:#A99FB7;
  --radius:2px;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.75}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
section[id]{scroll-margin-top:76px}

/* 页头 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(20,17,26,.94);border-bottom:1px solid var(--line);transition:border-color .15s}
.site-header.scrolled{border-bottom:2px solid var(--pink)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:18px;height:18px;flex-shrink:0}
.brand-name{font-size:15px;font-weight:800;letter-spacing:.2px;white-space:nowrap}
.main-nav{display:flex;gap:2px;margin-left:auto}
.main-nav a{position:relative;padding:8px 12px;font-size:15px;color:var(--muted);border-radius:var(--radius);transition:color .12s,background .12s}
.main-nav a:hover{color:var(--text);background:var(--surface-2)}
.main-nav a.active{color:var(--text)}
.main-nav a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--pink)}
.nav-cta{display:none}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:4px;width:44px;height:44px;padding:0 10px;background:transparent;border:1px solid var(--line);border-radius:var(--radius);cursor:pointer}
.nav-toggle span{display:block;width:100%;height:2px;background:var(--pink)}
.nav-mask{display:none}

/* 按钮与标签 */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border:2px solid var(--pink);border-radius:var(--radius);background:var(--pink);color:#1A0E14;font-size:15px;font-weight:700;cursor:pointer;box-shadow:4px 4px 0 rgba(0,0,0,.45);transition:transform .12s,box-shadow .12s,background .12s}
.btn:hover{transform:translateY(-2px);box-shadow:2px 2px 0 rgba(0,0,0,.45)}
.btn:active{transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--pink);box-shadow:4px 4px 0 rgba(255,111,165,.2)}
.btn-ghost:hover{background:var(--surface-2)}
.btn-sm{padding:0 16px;font-size:14px}
.badge{display:inline-block;padding:4px 10px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);color:var(--muted);font-family:var(--mono);font-size:12px;letter-spacing:.5px}
.badge-mint{color:var(--mint);border-color:rgba(87,226,176,.45)}
.badge-lemon{color:var(--lemon);border-color:rgba(255,211,92,.45)}

/* 通用板块 */
.sec{position:relative;padding:72px 0}
.sec-alt{background:var(--bg-alt)}
.sec-head{margin-bottom:28px}
.kicker{margin:0 0 8px;font-family:var(--mono);font-size:12px;letter-spacing:1.5px;color:var(--pink)}
.sec-title{margin:0 0 10px;font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.25}
.sec-desc{max-width:760px;margin:0;color:var(--muted);font-size:15px}

/* 首屏 */
.hero{position:relative;overflow:hidden;padding:64px 0 72px;background:linear-gradient(180deg,#1F1929 0%,#14111A 100%);border-bottom:1px solid var(--line)}
.hero::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 4px);pointer-events:none}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.hero-title{margin:0 0 18px;font-size:clamp(32px,5vw,56px);font-weight:800;line-height:1.2;letter-spacing:-.5px}
.hero-title em{font-style:normal;display:inline-block;padding:0 8px;margin-left:2px;background:var(--pink);color:#1A0E14;box-shadow:4px 4px 0 var(--pink-deep)}
.hero-sub{margin:0 0 12px;font-size:clamp(16px,1.7vw,19px);font-weight:600}
.hero-desc{max-width:520px;margin:0 0 26px;color:var(--muted);font-size:15px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-media{display:grid;gap:12px}
.hero-main{position:relative;margin:0;border:2px solid var(--line);background:var(--surface);box-shadow:6px 6px 0 rgba(0,0,0,.5)}
.hero-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-cap{display:flex;align-items:center;gap:8px;padding:6px 12px;border-top:1px solid var(--line);background:rgba(20,17,26,.9);font-family:var(--mono);font-size:12px;color:var(--text)}
.hero-cap i{display:block;width:6px;height:6px;background:var(--mint)}
.hero-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.hero-thumbs img{width:100%;aspect-ratio:1/1;object-fit:cover;border:1px solid var(--line)}

/* 倒计时 */
.countdown-bar{background:var(--surface-2);border-bottom:1px solid var(--line)}
.countdown-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:16px 24px}
.countdown-label{margin:0;font-size:15px;font-weight:700}
.countdown-clock{display:flex;gap:8px}
.cd-unit{display:flex;align-items:baseline;gap:4px;padding:6px 10px;border:1px solid var(--line);background:var(--bg);font-size:12px;color:var(--muted)}
.cd-unit b{font-family:var(--mono);font-size:20px;font-weight:700;color:var(--lemon)}

/* 指标看板 */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--surface)}
.stat{padding:24px 16px;text-align:center;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat b{display:block;font-family:var(--mono);font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.1;color:var(--mint)}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--muted)}

/* 活动亮点 */
.hl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.hl-item{padding:20px;border:1px solid var(--line);border-left:3px solid var(--pink);background:var(--surface)}
.hl-item h3{margin:0 0 6px;font-size:16px;font-weight:700}
.hl-item p{margin:0;font-size:14px;line-height:1.7;color:var(--muted)}

/* 作品卡片 */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{border:1px solid var(--line);background:var(--surface);transition:transform .12s,border-color .12s}
.card:hover{transform:translateY(-2px);border-color:var(--pink)}
.card-thumb{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.card-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:filter .12s}
.card:hover .card-thumb img{filter:brightness(1.06)}
.tag{position:absolute;top:0;right:0;padding:3px 8px;font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:.5px;background:var(--mint);color:#0E1A15}
.tag-lemon{background:var(--lemon);color:#2A1F00}
.tag-violet{background:var(--violet);color:#140A2A}
.tag-gray{background:#4A4157;color:#E4DEF0}
.card-body{padding:12px}
.card-title{margin:0 0 6px;font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:0;font-size:12px;color:var(--muted)}
.card-meta b{font-family:var(--mono);font-size:13px;color:var(--lemon)}

/* 热门横版卡 */
.hot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.hot-card{display:grid;grid-template-columns:42% 1fr;border:1px solid var(--line);background:var(--surface);transition:transform .12s,border-color .12s}
.hot-card:hover{transform:translateY(-2px);border-color:var(--pink)}
.hot-thumb{position:relative;overflow:hidden;border-right:1px solid var(--line)}
.hot-thumb img{width:100%;height:100%;object-fit:cover}
.hot-body{padding:14px;min-width:0}
.hot-body h3{margin:0 0 6px;font-size:15px;font-weight:700;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.hot-body p{margin:0 0 10px;font-size:13px;line-height:1.65;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hot-foot{display:flex;align-items:center;justify-content:space-between;font-family:var(--mono);font-size:12px;color:var(--lemon)}
.hot-foot span:last-child{color:var(--pink)}

/* 分类频道 */
.cat-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;padding-bottom:12px}
.cat{display:block;padding:18px;border:1px solid var(--line);background:var(--surface);transition:transform .12s,border-color .12s,background .12s}
.cat:hover{border-color:var(--pink);background:var(--surface-2);transform:translateY(-2px)}
.cat:nth-child(even){margin-top:12px}
.cat-icon{width:24px;height:24px;margin-bottom:16px;background:var(--pink);box-shadow:12px 0 0 rgba(255,111,165,.45),0 12px 0 rgba(87,226,176,.5),12px 12px 0 rgba(255,211,92,.5)}
.cat h3{margin:0 0 6px;font-size:15px;font-weight:700}
.cat p{margin:0;font-size:12px;line-height:1.6;color:var(--muted)}

/* 对比表 */
.cmp{border:1px solid var(--line);background:var(--surface)}
.cmp-row{display:grid;grid-template-columns:1fr 1.2fr 1.2fr;border-bottom:1px solid var(--line)}
.cmp-row:last-child{border-bottom:0}
.cmp-row>span{padding:14px 16px;font-size:14px;border-left:1px solid var(--line)}
.cmp-row>span:first-child{border-left:0;color:var(--muted)}
.cmp-head{background:var(--surface-2);font-weight:700}
.cmp-head>span{color:var(--text)}
.yes{color:var(--mint)}
.no{color:#6C6379}

/* 排行榜 */
.rank{display:grid;grid-template-columns:1fr 1fr;gap:0 28px}
.rank-item{display:grid;grid-template-columns:32px 1fr auto auto;align-items:center;gap:12px;padding:12px 10px;border-bottom:1px solid var(--line);transition:background .12s}
.rank-item:hover{background:var(--surface-2);box-shadow:inset 2px 0 0 var(--pink)}
.rank-no{display:grid;place-items:center;width:26px;height:26px;background:var(--line);color:var(--text);font-family:var(--mono);font-size:13px;font-weight:700}
.rank-no.n1{background:var(--pink);color:#1A0E14}
.rank-no.n2{background:var(--lemon);color:#2A1F00}
.rank-no.n3{background:var(--violet);color:#140A2A}
.rank-info{min-width:0}
.rank-name{display:block;font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-tag{font-family:var(--mono);font-size:11px;color:var(--muted)}
.rank-bar{display:flex;gap:2px}
.rank-bar i{display:block;width:4px;height:10px;background:var(--line)}
.rank-bar i.on{background:var(--pink)}
.rank-score{font-family:var(--mono);font-size:13px;color:var(--lemon)}

/* 时间线 */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;border-top:1px solid var(--line);padding-top:28px}
.tl-item{position:relative;padding-top:4px}
.tl-item::before{content:"";position:absolute;top:-34px;left:0;width:12px;height:12px;background:var(--pink);box-shadow:0 0 0 3px var(--bg)}
.tl-item time{display:block;font-family:var(--mono);font-size:12px;color:var(--lemon);margin-bottom:4px}
.tl-item p{margin:0;font-size:14px;line-height:1.65;color:var(--muted)}

/* 专题合辑 */
.feature-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:16px}
.feature-main{display:grid;gap:16px}
.feature-card{position:relative;display:block;border:1px solid var(--line);overflow:hidden;background:var(--surface);transition:border-color .12s}
.feature-card:hover{border-color:var(--pink)}
.feature-card img{width:100%;aspect-ratio:3/2;object-fit:cover}
.fc-body{position:absolute;left:0;right:0;bottom:0;padding:14px;background:rgba(20,17,26,.9);border-top:1px solid var(--line)}
.fc-body h3{margin:0 0 8px;font-size:16px;font-weight:700}
.fc-body span{display:inline-block;margin-right:8px;padding:2px 8px;border:1px solid var(--line);font-family:var(--mono);font-size:11px;color:var(--muted)}
.feature-side{display:grid;gap:16px;align-content:start}
.feature-strip{display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:center;padding:12px;border:1px solid var(--line);background:var(--surface);transition:border-color .12s}
.feature-strip:hover{border-color:var(--pink)}
.feature-strip img{width:96px;height:72px;object-fit:cover;border:1px solid var(--line)}
.feature-strip h3{margin:0 0 4px;font-size:14px;font-weight:600}
.feature-strip p{margin:0;font-family:var(--mono);font-size:11px;color:var(--muted)}

/* 资讯 */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 36px}
.news-item{display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.news-item img{width:96px;height:72px;object-fit:cover;border:1px solid var(--line)}
.news-item h3{margin:0 0 4px;font-size:14px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item time{font-family:var(--mono);font-size:12px;color:var(--muted)}
.news-more{display:inline-block;margin-top:18px;font-family:var(--mono);font-size:13px;color:var(--pink)}

/* 设备适配 */
.device-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding-bottom:12px}
.device-item{padding:20px;border:1px solid var(--line);background:var(--surface)}
.device-item:nth-child(even){margin-top:12px}
.device-item h3{margin:14px 0 6px;font-size:15px;font-weight:700}
.device-item p{margin:0;font-size:13px;line-height:1.65;color:var(--muted)}
.device-icon{width:20px;height:20px;background:var(--mint);box-shadow:10px 0 0 rgba(87,226,176,.4),0 10px 0 rgba(255,111,165,.55)}

/* 平台保障 */
.guar-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.guar{display:grid;grid-template-columns:40px 1fr;gap:16px;padding:20px;border:2px solid var(--line);background:var(--surface)}
.guar-icon{width:20px;height:20px;margin-top:4px;background:var(--lemon);box-shadow:10px 0 0 rgba(255,211,92,.45),0 10px 0 rgba(155,123,255,.55)}
.guar h3{margin:0 0 6px;font-size:16px;font-weight:700}
.guar p{margin:0;font-size:14px;line-height:1.7;color:var(--muted)}

/* 快速解答与问答 */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.chip{padding:10px 16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);font-size:14px;cursor:pointer;transition:border-color .12s,color .12s}
.chip:hover{border-color:var(--pink);color:var(--pink)}
.faq{max-width:860px;margin:0 auto}
.faq details{margin-bottom:10px;border:1px solid var(--line);background:var(--surface)}
.faq details[open]{border-color:var(--pink)}
.faq summary{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 18px;cursor:pointer;font-size:15px;font-weight:600;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);font-size:18px;line-height:1;color:var(--pink)}
.faq details[open] summary::after{content:"−"}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq p{margin:0;padding:16px 18px;font-size:14px;line-height:1.75;color:var(--muted)}

/* 订阅 */
.sub-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.sub-form{display:grid;gap:12px}
.sub-form label{font-family:var(--mono);font-size:12px;letter-spacing:.5px;color:var(--muted)}
.sub-form input,.sub-form select{width:100%;min-height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg);color:var(--text);font-size:15px}
.sub-form input:focus,.sub-form select:focus{border-color:var(--pink);outline:none}
.sub-form .btn{width:100%}
.form-msg{min-height:20px;margin:0;font-size:13px;color:var(--muted)}
.form-msg.err{color:var(--pink)}
.form-msg.ok{color:var(--mint)}

/* 页脚 */
.site-footer{background:var(--bg-alt);border-top:2px solid var(--pink);padding:56px 0 24px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.foot-brand .brand-name{font-size:15px}
.foot-desc{margin:0 0 14px;font-size:13px;line-height:1.75;color:var(--muted);max-width:260px}
.foot-links{display:flex;flex-wrap:wrap;gap:14px}
.foot-links a{font-size:13px;color:var(--muted)}
.foot-links a:hover{color:var(--pink)}
.site-footer h4{margin:0 0 12px;font-size:13px;font-weight:700;letter-spacing:.5px;color:var(--text)}
.foot-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot-list a,.foot-list span{font-size:13px;color:var(--muted)}
.foot-list a:hover{color:var(--pink)}
.foot-bottom{margin-top:36px;padding-top:18px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

@media (max-width:1024px){
  .container{padding:0 24px}
  .main-nav{position:fixed;top:0;right:0;bottom:0;width:78vw;max-width:300px;margin:0;padding:80px 20px 24px;display:flex;flex-direction:column;gap:0;background:var(--surface);border-left:2px solid var(--pink);transform:translateX(101%);transition:transform .2s ease;z-index:70;overflow-y:auto}
  .main-nav.open{transform:translateX(0)}
  .main-nav a{min-height:44px;display:flex;align-items:center;padding:12px 6px;border-bottom:1px solid var(--line);border-radius:0}
  .main-nav a.active::after{display:none}
  .main-nav a.active{color:var(--pink)}
  .nav-cta{display:flex;margin-left:0;margin-top:16px}
  .nav-toggle{display:flex;margin-left:auto}
  .header-cta{display:none}
  .nav-mask.show{display:block;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:65}
  .sec{padding:56px 0}
  .hero{padding:48px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:2}
  .hl-grid,.card-grid,.device-grid{grid-template-columns:repeat(3,1fr)}
  .hot-grid{grid-template-columns:1fr 1fr}
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-left:0;border-top:1px solid var(--line)}
  .stat:nth-child(1),.stat:nth-child(2){border-top:0}
  .stat:nth-child(even){border-left:1px solid var(--line)}
  .timeline{grid-template-columns:repeat(3,1fr)}
  .sub-grid{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .sec{padding:44px 0}
  .card-grid,.hl-grid,.device-grid,.hot-grid,.cat-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .rank{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .guar-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr 1fr;border-top:0;padding-top:0}
  .tl-item{padding:16px;border-top:1px solid var(--line)}
  .tl-item::before{display:none}
  .cmp-row{grid-template-columns:1fr}
  .cmp-row>span{border-left:0;border-top:1px solid var(--line);padding:10px 16px}
  .cmp-row>span:first-child{border-top:0;padding-top:14px;font-weight:700;color:var(--text)}
  .countdown-inner{padding:14px 24px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .header-inner{gap:10px}
  .brand-name{font-size:13px}
  .card-grid,.hl-grid,.device-grid,.hot-grid,.cat-grid{grid-template-columns:1fr}
  .hero-thumbs{grid-template-columns:repeat(4,1fr);gap:8px}
  .hero-actions .btn{width:100%}
  .stats-grid{grid-template-columns:1fr 1fr}
  .rank-bar{display:none}
  .foot-grid{grid-template-columns:1fr}
  .device-item:nth-child(even),.cat:nth-child(even){margin-top:0}
  .feature-strip{grid-template-columns:80px 1fr}
  .feature-strip img{width:80px;height:60px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .hero::after{display:none}
}